<template>
  <div class="bar">
    <h4>{{ title }}</h4>
    <div class="chart">
      <v-chart
        :force-fit="true"
        height="312"
        :data="data"
        :padding="[20, 20, 20, 20]"
        :extend="chartExtend"
      >
        <v-tooltip />
        <v-axis />
        <v-bar position="x*y" />
      </v-chart>
    </div>
  </div>
</template>

<script>
const data = [];
for (let i = 0; i < 12; i += 1) {
  data.push({
    x: `${i + 1}月`,
    y: Math.floor(Math.random() * 1000) + 200,
  });
}
const tooltip = [
  "x*y",
  (x, y) => ({
    name: x,
    value: y,
  }),
];

const scale = [
  {
    dataKey: "x",
    min: 2,
  },
  {
    dataKey: "y",
    title: "时间",
    min: 1,
    max: 22,
  },
];
export default {
  name: "Bar",
  props: ["title", "data"],
  data() {
    return {
      scale,
      tooltip,
      chartExtend: {
        xAxis: {
          // ------------------------横坐标垂直显示
          axisLabel: {
            show: true,
            textStyle: {
              color: "white",
              fontSize: 18,
            },
          },
          triggerEvent: true,
        },
      },
    };
  },
};
</script>

<style scoped lang="less">
.bar {
  position: relative;
  .chart {
  }
}
</style>
